One Quickie

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Seeing the selectors objects ask you about (NSObject->General)

Sometimes it's handy to see when someone is asking your object what selectors it reponds to. Stick this in your class and you can see what folks are asking for:

- (BOOL) respondsToSelector: (SEL) aSelector
{
    NSLog (@"%s", (char *) aSelector);
    return ([super respondsToSelector: aSelector]);

} // respondsToSelector

This takes advantage of an implementation detail where the SEL is actually a pointer to a C string